You have presented some good examples such as museum as time machine and museums as a source of new ideas, but I think you have some problems in tense and sentence structure.
Museum is like a lake which you can grasp your lack.
I can't get what you mean by this sentence. Did you want to say something like this: Museum is like a lake from which you can grasp substances to compensate your lack?
Some people make a tour just to visit museums.
This is not a good cause!
Visiting museums would also be my priority if I travel to a city because:
Oo riginally, what do you do when you encounter a something about which you don't have any information? about it
Surely, you should refer to (go through) its catalog to get information.
rise our Wittig (enhance our knowledge)
Almost I did not know anything about Iraq.(I knew almost nothing about Iraq)
and you see how our ancestors lived
...For a while I felt that I
livelived in the past.
One of my best experiment was done after visiting of The National Automobile Museum in Nevada. (Visiting the National Automobile Museum in Nevada is one of my best experiences.)
worked like their real ones.